Prices for scrap processed plastic to export

Question posted by Jason Webb, on behalf of Services Direct Uk Ltd in SS5

I am looking for websites, or sources that can help correctly price scrap/ processed plastics we produce for export.

Where should I specifically look?

We have looked at letsrecycle.com but I don't think this has been much help as not all the information we want to find is there.

Any assistance from people that have done this would be greatly appreciated.